Refiner base structure



Jan. 19, 1965 H, w. STEINIGER ETAL 3,166,260

REFINER BASE STRUCTURE 5 Sheets-Sheet 1 Filed Feb. 10, 19 61 n INVENTORS Aloe/mew rv- .rrewwazw 4/0/76'5 a n? w/va V BY w ,yrra/e/viy Jan. 19, 1965 H. w STEINIGER ETAL 3,166,260

REFINER BASE STRUCTURE Filed Feb. 10, 1961 3 Sheets-Sheet 2 Jan. 19, 1965 H, w. STEINIGER ETAL 3,166,260

' REFINER BASE STRUCTURE Filed Feb. 10, 1961 a Sheets-Sheet s INVENTORS Hew/vfl/y 144 376/4062? din -s .5 he V/A syjjpm W United States Patent 3,166,260 REFINER BASE STRUCTURE Herman W. Steiniger and James E. Irvine, Springfield, @lrio, assignors to The Bauer Bros. (10., Springfield, Ohio, a corporation of Ohio Filed Feb. 19, 1961, Ser. No. 88,438 11 Claims. (Cl. 24l285) This invention relates to pulp refiners, particularly of the double disc type, and especially to a generally new refiner base. In a refiner as described the base supports the rotating opposed discs between which the pulp is milled and it supports on opposite sides of the mill disc assembly individual electric motors of large horsepower. The base desirably provides a stable mounting for these elements under all operating conditions, and, in addition, may be adapted for the circulation of fluids to enable air cooling of the motors and liquid cooling of the base, the latter involving a removal of heat absorbed into the base as well as a distribution of the heat load in a manner to obviate localized overheating,

The object of the invention is to simplify the construction as well as the means and mode of operation of refiner bases, whereby such bases may not only be economically manufactured, but will be more efficient and satisfactory in use, adaptable to a wide variety of applications, and be unlikely to get out of order.

It is a further object of this invention to achieve the foregoing desirable results in a refiner with improved facility.

Another object of the invention is to improve the manner of support of motor and refiner elements in such manner as to provide strengthened support up to the shaft center line.

A further object of the invention is to make provision in the base for the enclosing of auxiliary hydraulic and electrical lines in the interests of greater safety, compactness and freedom from damage.

Still another object of the invention is to introduce a principle of rail beam construction in a refiner base as described providing a means of suspending structural elements of the mill from side margins of the base, which margins form part of the motor enclosure and air circulation passage as well as providing enclosed conduits for auxiliary equipment as described.

A still further object of the invention is to provide for increased compartmentation, with reduced by-pass, in the base whereby circulation of a liquid coolant therethrough will accomplish better heat absorption and distribution.

A further object of the invention is to provide a refiner base possessing the advantageous structural features, the inherent meritorious characteristics and the mode of operation herein mentioned.

With the above and other incidental objects in view as will more fully appear in the specification, the invention intended to be protected by Letters Patent consists of the features of construction, the parts and combinations thereof, and the mode of operation as hereinafter described or illustrated in the accompanying drawings, or their equivalents.

Referring to the accompanying drawings wherein is shown one but obviously not necessarily the only form of embodiment of the invention, illustrating the best mode of carrying out the invention.

FIG. 1 is a top plan view or" a refiner base in accordance with the illustrated embodiment of the invention;

FIG. 2 is a view in longitudinal section taken substantially along the line 2-2 of FIG. 1;

FIG. 3 is a view of the base of FIG. 1 in side elevation;

FIG. 4 is a view in cross-section taken substantially along the line 4-4 of FIG. 2;

3,166,260 Patented Jan. 19, 1965 FIG. 5 is a view in cross-section, taken substantially along the irregular line 55 of FIG. 1;

FIG. 6 is a view in cross-section taken substantially along the line 66 of FIG. 2; and I FIG. 7 is a view in cross-section taken substantially along the line 77 of FIG. 2.

Like parts are indicated by similar characters of reference throughout the several views.

Referring to the drawings, the refiner base of the illustrative embodiment of the invention is essentially unitary in its construction although made up of formed plates and subassemblies of plates welded together. The welded joints are made water tight where required, portions of the base being adapted, as noted, for flow of a liquid coolant therethrough.

The base comprises a bottom beam 10 which is in part comprised of spaced apart plates 11 and 12 between which are longitudinal walls 13, 14 and 15 intersected at intervals by a plurality of laterally extending longitudinally spaced apart walls 16. The ends of the beam 10 are closed by plates 17 and 18 which project upward relatively to the beam, and, in conjunction with other connected plates having a common mounting on the beam 10 define end or outboard pedestals 19 and 21. Intermediate the outboard pedestals are inner or inboard pedestals 22 and 23, these also being of a fabricated construction and being mounted on the beam 10 in upstanding relation thereto. As indicated in FIG. 4, which is a cross-section through outboard pedestal 19, each outboard pedestal further is comprised in part of a horizontal plate 24 in vertically spaced relation to the upper plate 11 of the bottom beam 10, and still further is comprised of vertically extending laterally spaced apart plates 25, 26 and 27. The several plates of the pedestal cooperate in defining compartments which overlie similar compartments in the bottom beam 10, it being understood that the bottom beam is made up throughout its length of a plurality of compartments by reason of the intersecting walls 13-16.

The inboard pedestals are similarly constructed, as seen in FIG. 6 which is a cross-section through inboard pedestal 23. Thus, a plate 28 in each inboard pedestal is in parallel vertically spaced relation to the bottom beam and integrally connected therewith through vertically extending walls 29, 31 and 32. The pedestal is compartmented by these and companion walls closing the ends and sides of the pedestal, which latter walls include side portions 33 and 34 of indented angular configuration.

Side portions of all of the inboard and outboard pedestals form side walls of the base and are inset to provide elevated side mountings for longitudinally extending rail beams 35 and 36. The beams 35 and 36 extend above the upper plates 24 and 28 of the outboard and inboard pedestal and at their upper ends provide anchors for one end of respective top plates 37 and 38 on the outboard and inboard pedestals. Longitudinally extending ribs 39 and 41 support the inner ends of the top plates 37 and cooperate therewith in mounting laterally spaced apart bearing support pads 42 and 43. Similarly, each inboard pedestal provides longitudinally extending ribs 44 and 45 at the inner ends of the top plates 38 coopertaing therewith to mount bearing support pads 46 and 47. As suggested, the bearing support pads of each outboard pedestal support a shaft bearing, here diagrammatically indicated in FIG. 4 at 48. Likewise, the bearing support pads 46 and 47 of each inboard pedestal support a shaft bearing here diagrammatically indicated in FIG. 6 at 49.

In its adapted use aligned shafts are supported by the base in the indicated bearing structures. Thus outboard pedestal 19 and inboard pedestal 22 are adapted to support a first shaft while outboard pedestal 21 and inboard pedestal 23 support a second shaft, the two shafts having their inner ends terminating between the inboard pedestal in alignment with one another. On such inner ends refiner discs are mounted, the approximate size and location of the discs being in accordance with the diagrammatic representation 51 shown in FIG. 6. Each shaft further mounts or includes in its construction a rotor located respectively between the pair of pedestals 19 and 22 and between the pair of pedestals 21 and 23. These are parts of electrically powered motors, having approximately the size and location as indicated by the diagrammatic representation 52 in FIG. 7;

The sides of the base, along with the several pedestals, define what may be considered refiner and motor wells respectively receiving the discs 51 and the motors 52. Further, and in accordance with the instant inventive concept, the rail beams 35 and 36 and the connected top plates 37 and 38 have the effect of extending the base support upward approximately to the center line of the motor shafts. Better pedestal support for the refiner and for the motors accordingly is provided as Well as increased compactness and stability. In the bottom of the refiner well, between inboard pedestals 22 and 23, is a through opening 53 in the bottom beam it). Stock material fed to the discs 51 is acted on thereby and discharged from the mill by way of the base opening 53. The flow of material from the discs to the outlet opening 53 is guided by a surrounding case, indicated fragmentatily herein at 54- in FIG. 5. Such cases is, as indicated, formed with flanges at its upper end engaged over pads 55 and 56 (see also FIG. 1) on top of respective rail beams 35 and 36. The case 54, which is the lower part ofa case in surrounding relation to the refiner discs, extends downwardly through the base 2 and through the stock opening 53. It is thus, in effect, suspended from the rail beams 35 and 36.

The rail beams also provide support for the stators of the motors. To this end they have mounted on top thereof a pair of pads 57 and 58 between the pedestals l9 and 22 and a like pair of pads 59 and 61 between the pedestals 21 and 23. The stationary parts of the motor accordingly also are suspended from the rail beams 35 and 36 which define relatively elevated structural members of good carrying strength at upper side margins of the base.

In addition to serving as rails from which elements of the refiner are suspended, the rail beams 35 and 36 are constructed and arranged to serve as conduits receiving in a protective, enclosing relation water and oil conducting pipes and electrical wires. The beams are open at their ends for the introduction of such equipment and are formed with inwardly facing apertures (FIG. 2), such as openings 62 and 63 in the motor wells and an opening 64 in the refiner well. Thus hydraulic and electrical lines introduced into one or both of the rail beams 35 and 36 from outside the base can be communicated selectively through the openings 62-64 with the motor and refiner wells. These connections, used, forexample, to conduct water and oil to the refining area, and to sense the bearing temperatures, have the character of auxiliary equipment and are indicated diagrammatically at 65 in FIG. 5. Inthe region of the refiner area, the rail beams 35 and 35 further cooperate with laterally projecting and inclined plates 33 and 34 to define ducts 67 and 68 of longitudinal extent. These ducts terminate at their opposite ends immediately beyond the inboard pedestals 22 and 23 and serve as enclosed conduits for power cables which electrically connect the separate motors when these are in parallel and started from a single starter. The ducts 67 and 6d are alternatively used in accordance with the position of the base. The cables carried thereby are diagrammatically indicated at 69 in FIG. 5. i

The rail beams 35 and 36 form part of the motor and refiner disc enclosures and assist in avoiding a by-p assing of the air which is drawn for ventilation and cooling motor vanes, is drawn through and over the motor, downward in the motor wells and laterally outwardly from the face by way of side openings therein such as the openings '71 and 72 as shown in FIG. 3. A liquid coolant for circulation through the base, enters the base at an inlet '73 at one end of the base and leaves by way of an outlet '74 at the same end. In traveling from the inlet 73 to the outlet 74 the liquid coolant follows a circuitous path through the bottom beam iii and through the several pedestals, all of which as has been seen, are compartmented by water tight partitions. The route of the coolant flow is designed to bring it through all of the compartments of the base, below the upper plates 2d and 23 of the pedestals, and is laid out in such manner as to obviate by-passing and to obtain the most advantageous distribution of absorbed heart. Flow from one compartment to another is by way of openings in the cornpartment walls, some of these openings and the direction of flow therethrongh being illustratively shown in FIGS. 4 and 6.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise but one of several modes of putting the invention into effect, andt'ne invention is therefore claimed in any of its forms or modifications within the legitimate and valid scopeof the appended claims.

Having thus described our invention, we claim:

1. A base for a double disc refiner, including a bottom beam, spaced apart pedestals on said beam, said beam and pedestals being compartmented and interconnected for circulation of a liquid coolant therethrough, longitudinally extending side plates projecting vertically from said bottom beam, said side plates having lateral openings for circulation of air intermediate said pedestals, and longitudinally extending rail beams in vertical superposed relation to said side plates substantially to the height of said pedestals, said rail beams being hollow to serve as enclosure conduits for hydraulic and electrical lines and having means superposed for suspending motor and refiner structure intermediate said pedestals.

2. A base for a double disc refiner, including a bottom beam, an assembly of longitudinally spaced apart pedestals and longitudinally extending side plates arranged vertically of said bottom beam to define an intermediate refiner well and at opposite ends thereof motor wells, longitudinally extending rail beams in vertically superposed relation to said side plates, said rail beams being hollow and open at their ends to serve as enclosed conduits for auxiliary hydraulic and electrical lines, and top mounting pads on said rail beams at the locations of said wells providing means for suspending motor and refiner structure therefrom intermediate said pedestals.

3. A base according to claim 2, characterized by means cooperating with said rail beams to form enclosed cable conduits extending longitudinally of said refiner well on opposite sides thereof and terminating at their ends in respective motor wells.

4. A base for a double disc refiner, including a bottom beam, an assembly of pedestals and side plates pro jected vertically from said bottom beam, including outboard pedestals at the ends of said beam and intermediate longitudinally spaced apart inboard pedestals, said bottom beam having a vertical through openingbetween said inboard pedestals, rail beams extending longitudinal- 1y of said bottom beam on said side plates, said rail beams forming conduits for hydraulic and electrical lines, mounting pads on said rail beams including pads intermediate said inboard pedestals, and a refiner case suspended from last named pads and extending downward in the base toward said through opening.

5. A base for a double disc refiner including, a bottom beam, longitudinally spaced apart upstanding pedestals thereon, longitudinally extending side walls on said bottom beam having rail beams fixed thereon, motor shaft bearing support pads on said pedestals approximately in the uppermost horizontal plane thereof, referenced to said bottom beam, and motor support pads on said rail beams intermediate pairs of said pedestals in a plane approximately common to the aforementioned plane, arranged for suspension of motor units from said rail beams and between pairs of said pedestals.

6. A base according to claim 5, characterized in that said rail beams are hollow and open at their ends to serve as enclosed conduits for auxiliary hydraulic and electrical lines.

7. A base for a double disc refiner, including a bottom beam, upstanding side walls on said beam terminating at their upper ends in longitudinally extending rail beams, oppositely disposed mounting pads on said rail beams intermediate the ends thereof, a refiner case contained within said base and suspended from said mounting pads, and motor support means on said rail beams arranged to suspend and provide a balance of motor housings between said sidewalls at opposite ends of said case.

8. A base for a double disc refiner, including a bottom beam, said beam having a through vertical opening intermediate its ends, inboard pedestals on said beam adjacent to opposite ends of said opening, relatively elevated rail beams connected to said bottom beam and extending lengthwise thereof, means for suspending a refiner case from said rail beams between said pedestals to extend downward to said opening, outboard pedestals on said bottom beam cooperating with respective inboard pedestals as mounts for individual motor rotors, and means on said rail beams between each outboard pedestal and its associated inboard pedestal for mounting individual motor stators suspended therefrom.

9. A base according to claim 8, characterized by cable carrying ducts mounted to the side of said rail beams and extending between said inboard pedestals.

10. A base according to claim 8, characterized in that said rail beams are hollow to serve as enclosure conduits for auxiliary hydraulic and electrical lines.

11. A base in accordance with claim 8, characterized in that said rail beams are hollow to serve as enclosure conduits for auxiliary hydraulic and electrical lines, said rail beams having inwardly facing openings communicating the interior thereof with wells as defined in said base by said pedestal and said rail beams.

Sorensen Sept. 22, 1914- Woodrutf Sept. 25, 1951 

1. A BASE FOR A DOUBLE DISC REFINER, INCLUDING A BOTTOM BEAM, SPACED APART PEDESTALS ON SAID BEAM, SAID BEAM AND PEDESTALS BEING COMPARTMENTED AND INTERCONNECTED FOR CIRCULATION OF A LIQUID COOLANT THERETHROUGH, LONGITUDINALLY EXTENDING SIDE PLATES PROJECTING VERTICALLY FROM SAID BOTTOM BEAM, SAID SIDE PLATES HAVING LATERAL OPENINGS FOR CIRCULATION OF AIR INTERMEDIATE SAID PEDESTALS, AND LONGITUDINALLY EXTENDING RAIL BEAMS IN VERTICAL SUPERPOSED RELATION TO SAID SIDE PLATES SUBSTANTIALLY TO THE HEIGHT OF SAID PEDESTALS, SAID RAIL BEAMS BEING HOLLOW TO SERVE AS ENCLOSING CONDUITS FOR HYDRAULIC AND ELECTRICAL LINES AND HAVING MEANS SUPERPOSED FOR SUPENDING MOTOR AND REFINER STRUCTURE INTERMEDIATE SAID PEDESTALS. 